yii2 目录结构

assets/ contains assets definition 包含资源定义

commands/ contains console commands (controllers) 包含命令行命令，控制器

config/ contains application configurations 包含应用程序配置

controllers/ contains Web controller classes 包含web 控制器类

mail/ contains view files for e-mails 包含视图文件和邮件

models/ contains model classes 包含模型类

runtime/ contains files generated during runtime 包含运行时文件

tests/ contains various tests for the basic application 包含各种测试的基本应用程序

vendor/ contains dependent 3rd-party packages 包含依赖第三方的包

views/ contains view files for the Web application 包含WEB应用程序的视图文件 即网页模版

web/ contains the entry script and Web resources 包含脚本条目和 web 资源